Public Preview: Cross region pool association support for Azure Virtual Network Manager IP address management

Managing IP address spaces across multiple regions can be complex and error-prone. With this new capability, you can now associate a single IPAM pool with virtual networks in multiple regions, simplifying governance and ensuring consistent CIDR allocation globally. **Key benefits include:** * **Simplified management:** Consolidate address planning into one multi-region pool instead of per-region pools. * **Consistent governance:** Enforce CIDR policies across regions with flexible region restrictions. * **Backward compatibility:** Existing single-region pools continue to work seamlessly. This enhancement enables global-scale deployments while reducing operational overhead and maintaining precise control of address allocation across your Azure footprint. This preview feature is available in select regions. To get started, please refer to the [documentation](https://aka.ms/azureipamcrossregionpublicpreview) for guidance on enabling this preview feature.